noun
addition, growth
Synonyms: access, accession, accretion, accrual, accumulation, aggrandizement, augmentation, boost, breakthrough, burgeoning, cumulation, development, elaboration, enlargement, escalation, exaggeration, expansion, extension, gain, hike, incorporation, increment, inflation, intensification, maximization, merger, multiplication, optimization, raise, rise, spread, step-up, surge, swell, swelling, upgrade, upsurge, upturn, waxing
Antonyms: decrease, depletion, diminishment, loss, subtraction
verb
add or grow
Synonyms: advance, aggrandize, aggravate, amplify, annex, augment, boost, broaden, build, build up, deepen, develop, dilate, distend, double, enhance, enlarge, escalate, exaggerate, expand, extend, further, heighten, inflate, intensify, lengthen, magnify, mark up, mount, multiply, pad, progress, proliferate, prolong, protract, pullulate, raise, redouble, reinforce, rise, sharpen, slap on, snowball, spread, step up, strengthen, supplement, swarm, swell, tack on, teem, thicken, triple, wax, widen
Antonyms: decrease, deplete, diminish, lose, subtract